An airbag assembly may include an inflatable curtain airbag with a stowed configuration and a deployed configuration. The inflatable curtain may have a first chamber and a second chamber that inflates forward of the first chamber. The second chamber may be separated from the first chamber by a non-inflating region. The non-inflating region may have a width selected such that in-plane bending of the inflatable curtain occurs during deployment. The in-plane bending may position the second chamber lower than the first chamber such that the second chamber overlaps a significant portion of a door adjacent to the inflatable curtain. Forward and rearward portions of the non-inflating region may be attached together to form a fold that decreases the width of the non-inflating region, thereby enhancing the in-plane bending. The second chamber may also bend out-of-plane relative to the first chamber to help provide protection in small overlap collision situations.